Staple forming and driving machine.



No. 705,433. i Patented July 22, |902.

G. w. PACKER.

STAPLE FBMING AND DRIVING MACHINE.

. (Application mea occ. 19, 1900.) l

(No Model.) 3 SI1 -Sheet I.

v T11 -ll ven/Ko 5l lll Patented .luIy 22, [902.

3 Sheets-Sheet 2.

Ihvenor llllllllllll/ G). w. PACKEH.

(Application led Oct. 19, 1900.)

STAPLE FORMING AND DRIVING MACHINE.

- (nu Mum.)

No. 705,433. Patenced July-22, |902.

.Y G. w. PAcKEn. j

,STAPLE FORIIING AND DRIVING MACHINE. (Application Bled Oct. 19, 1900.)A (llo Model.) 3 Sheets-Sheet 3.

H WM VMM @M UNITED STATES PATENT OFFICE.

GEORGE W. PACKER, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE DEERINGHARVESTER COMPANY, OF CHICAGO, ILLINOIS.

STAPLE FORMINGHAND DRIVING MACHINE.

SPECIFICATION forming part of Letters Patent No. 705,433, dated uly 22,1902.

Application led October 19, 1900. Serial No. 33,595. (No model.)

T0 @ZZ 11177/0797/ W000i/ C07K/'WW y set face c2 to forma rabbet orrecess. The Beit known that I, GEORGE W. PACKER, a inner beveledface c'has a steel block c3 set citizen of the United States, residing atChitherein, which block, cooperating with block cago, county of Cook,State of Illinois, have 14 and groove o, forms a cutter for the wire. 555 invented certain new and useful Improve- The lower end of slidec isbifurcated to form ments in Staple Forming and Driving Maa fork c4, theinner walls or throat of which chines; andI d0 hereby declare thefollowing are channeled, as at c5, for purposes to be deto be a full,clear, and exact description'of the scribed later. The :rear face of theslide c invention, such as will enable others skilled has a kerf orchannel c7 and a recess e9 at its 6o 1o in the art to which itappertains to make and upper end, while the lateral face is beveled usethe same. orchamfered, as at cs; Projecting rearwardly The invention hasfor its object to provide from face c2 is a cam c. an improved automaticmachine for forming Mounted in the recess of slide c, which will staplesfrom a continuous wire and setting or hereinafter be designated thecutting and 65 15 driving the staples so formed into the parts formingslide, is a reciprocatory drivingto be united thereby These objects Iobslide b, which has an elongated slot b4, entain by means of themechanism illustrated gaged by a suitable pin 010, projecting from inthe accompanying drawings, in Whichslide c, whereby aslip or slidingconnection Figure l isaside elevation of myimproved between therespective slides is provided. 7o zo machine. Fig. 2 is a fragmentaryside ele- Projecting rearwardly from the lower end of vationrepresenting the parts in driving poslide b is a driving-head b5, whichlits within sition. Figs. 3 and 4are vertical sections on the throat ofthe fork c4 and is accurately lines 3 3 and44, respectively,of Fig. 2.Fig. guided therein by lateral ribs bs, which en- 5 is ahorizontalsection on the line 5 5 of Fig. gage channels c5. 75 z5 2. Fig. 6 is aninverted plan view with a Mounted on a suitable pivot-pin b3 undersection through slides on line 6 G, Fig. 2. Fig. the head b' of slide bis a dog b2, having a flat 7 is an enlarged perspective'view of `theopunder face and alateral finger. When in operative mechanism, showingthe staple in erative position, said dog is engaged by a process offormation. Fig. 8 is a perspective stop 1l on the frame, which forces itagainst 8o 3o view of the cutting and forming slide viewed the side ofslide b in position to engage the from the rear. Figs. 9 and 10 aredetail views upper end of slide c, as shown in Fig. l. The inperspective of the anvil and driver-slide. upper end of slide b isprovided with 'a T- Fig. l1 is a horizontal-section on line 11 1l ofhead b', which engages the fork end a4 of the Fig. 1. .cross head a3,reciprocating in a suitable 85 3 5 Referring to Fig. 1 of the drawings,-1 repguide 4l on the bracket 2. A power-shaft a resents asupporting-frame, having a vertical has mounted thereon a crank-disk a',which bracket2andarearwardly-projecting arm 3. is connected by a link aewith said cross- Vertically disposed in the frame lis a guidehead a3.groove 4, having a rear wall provided with a Pivoted in the slot 7 bymeans of a pin d' is 9o 4o face 6, parallel with the face of the frame,an anvil-bar d, provided with a forwardlyand a beveled face 5, adjacentthereto. To projecting toe or anvil d2, which normally the rear of thegroove 4 is a groove 7 and a lies below and in alinement with the throatof slot 71, extending through the frame. Fitfork c, with its upper facesubstantially in ting snugly in a suitable recess in' the frame theplane of groove o, whereby the wire pro- 95 45 is a block 14, of steelor other hard metal, havjected from said groove by the feeding meching abeveled facelying in the plane of the anism Will-be supported in proper`position to face 5 of the groove 4. A longitudinal groove be operatedupon. The lateral face of the bar o in the top of said block placed atan acute d has an inclined lug d4, which is adapted to angle-to thebeveled face forms a wire-guide. be engaged by cam c6 on slide c whensaid slide 1 oc 5o A slide c, reciprocating in the groove 4, is isdepressed, thereby rocking the bar d on its formed with a beveled rearface c and an offpivot and retracting anvil d2 from its position infront of the fork. The upper end of har d is provided with a projectiond3, which engages kerf cT in the rear face of slide c when the bar isretracted and which rides out of said kerf onto the rear of the slide,thereby again projecting anvil (Z2 under the fork when said slide ciselevated. The relative arrangement of these parts in the upper and lowerpositions of the plungers is clearly shown in Figs. 3 and 4.

In order to secure a regular and automatic feeding of the wire tothecutting and forming mechanism, the following means is provided: Acombined ratchet and gear wheel e is mounted upon a suitable stud e2,secured to the frame 1, on which stud is also secured a knurledfeed-roller e. Loosely mounted on stud cgis a segmental plate e3, towhich is pivoted a series of spring-pressed pawls e, arranged indifferential relation to the teeth on wheel e. Plate e3 has a projectingarm e5, which is operatively connected with a rocklever e, pivoted tothe bracket 2, by means of a rod c, having connecting-links e7 and e8 atthe respective ends thereof. Rock-lever e is actuated by means of asuitable cam-groove e in a disk cl2, mounted on shaft a, which groove isengaged by a bowl e10 on the end of said level'. Pivoted to the frame 1is a lever ew, carrying a gear cl3, meshing with gear c, and a knurledroller e, opposite the corresponding roller e, said gear and said rollerbeing rotatably mounted on stud ew. The outer end of lever el isconnected to a link e, which fits in the forked end of arm 3 of theframe. A spiral spring els surrounds the link and is held under tensionby means of a nut el, between which nut and the fork of arm 3 saidspring is adjusted.

The slides are held in proper position in the groove 4 by means of aface-plate 13, which is bolted to the frame, and plate 13 is providedwith flanges fitting corresponding grooves 3l in the face of themachine. v

As illustrated, the machine is designed to apply the formed staples infastening the slats s to the canvas apron r of a harvester, and althoughso shown it must be understood that the application of the device is notlimited to such use, but is susceptible of employment in the variousarts where analogous machines or operations are required.

My improved staple forming and driving machine, constructed as abovedescribed, operates as follows: A length of wire, preferably ofhalf-round section, is drawn from a suitable reel (not shown) and forcedbetween the feed-rollers e and @14 through the guideslot o in block 14,with its projectingend resting on the top face of anvil d2 and abuttingthe opposite side wall of groove 4. Power is then applied to shaft a andthe mechanism started, all subsequent operations of the machine beingentirely automatic. The canvas apron r,havin g the slats properly placedthereon, is fed by hand orsuitable automatic means over a table orsupport (not shown) to bring the slats successively under thestaple-driving slide. Starting from the position shown in Fig. '1, shafta, crank a, and link a2 reciprocate cross-head 0,3 and connected drivingslide b. The initial movement of slide b causes a corresponding movementof slide c through the connecting pivoted dog b2, the lower end of slidec being somewhat in advance of the corresponding end of slide b. Asslide c descends the beveled cutting-block c3 thereon meets the wireprojecting from the sloto in the correspondingly-beveled face of block14, with the result that a suitable length of wire to form a staple issheared olf with a tapering point corresponding to the amount of bevelon the cutting-block. The sheared wire-section is then forced by thesides of the fork c1 over the anvil d2,thereby bending the wire intoform and forcing it up into the throat of the fork, where it is held inthe channels c5 by the anvil. Further motion of the guides causes cam cto engage lug d4 on the anvil-bar, rocking said bar on its pivot andretracting the anvil from the throat of the fork. On the continuedmovement of the slides the projecting finger on dog b2 engages the uppercorner of frame 1, as shown in Fig. 2, and swings said dog out ofcontact with the upper end of slide c, which is thus disconnected fromthe reciprocating means as it reaches the lower limit of its stroke,with its lower face in juxtaposition to the canvas 7' and Slat s. Slideb continues its downward movement independently of slide c by virtue ofthe pin-and-slot connection between them, and the driving head b5,following the staple in the fork c4, strikes said staple a sharp blow,forcing it out of the throat of the fork through the canvas into theslat. On the reverse movement of the cross-head plunger b is first movedupward alone until the bottom of slot b4 engages the pin 019, in slidec. Meanwhile dog b2 has dropped back into position to engage the end ofslide c. Slides b and c now move to the upper limit of their stroke anduntil c is arrested bya projection 12 on the frame engaging recess c9 insaid slide. As the crank rotates to move the plungers downward thecam-groove e, engaging the bowl of lever e, rocks said lever and movesthe pawl-plate e3 into the position shown in dotted lines in Fig. l, thepawls meanwhile slipping idly over the teeth of the gear c. As theplungers are retracted lever e9 is rocked in the opposite direction,ratchets c4 engage gear e and rotate it, thereby causing a correspondingrotation in gear cl3 and feed-rollers e and @14, feeding forward a newlength of wire to form another staple. The tension of the feed can beadjusted by spring cls and the amount of feed regulated by the screwadjustment in rod e6.

Having thus described my invention, what I claim is 1. In astapling-machine, the combination of a supporting-frame having abeveled-face guiding-groove in its face and a wire-guiding IIC slotterminatingin said beveled face, a re-A cessed cutting and forming slideoperating in said guiding-groove, said slide having a cooperatingbeveled cutting-face and a grooved forming-fork, a driving-slide mountedin the recess in said forming-slide and having a rear- Wardly-projecting ribbed hammer-headoperating in said grooved/fork, a pin-and-slotconnection between said forming and driving slides, a pivoted dogcarried by the drivingslide and adapted to be engaged with anddisengaged from said forming-slide, an anvilbar pivoted in said frameand having a toe projecting in the path of said forming-fork, coperatinglugs on the forming-fork and an vil-bar to retract the latter when thestaple has been formed, and operating means con nected with thedriving-slide whereby the several parts are successively operated to cutthe Wire, form the staple and drive the latter when formed,substantially as described.

2. In a stapling-rnachine, the combination of a supporting-frame havinga beveled-face guiding-groove, a recessed cutting and formforming-slideand anvil-bar to retract the latter from engagement with the fork, meansto actuate the driving-slide, means to successively connect anddisconnect the drivinr and forming slides, and a Wire-feeding deviceoperated by the slideactuating means, substantially as described.

In testimony whereof I affixV my signature in presence of tWo Witnesses.

GEORGE W. 'PACKER Witnesses:

WM. A. DREFFEIN, MARVIN ORAMER.

